Padlock



March e, 1945. R J @HNO 2,370,991

PADLOGK Filed Nov. 11, 1943 Patented Mar. 6, 1945 PADLOCK Richard JOhno, North Branford, Conn., assignor f to Sargent & Company, New Haven,Conn., a

corporation of Connecticut y l ApplicationNovember 11, 1943', Serial No.509,821v

(ci. vo-as) 1o claims.

This invention relates to padlocks, and more particularly to a padlockmade up of a plurality of superposed plates orr sections which form thebody of the lock and house the locking' mechanism. It willbe'understood, however, that certain features of the invention may beemployed in connection with locks other than padlocks, although, in thepresent instance, they are illustrated as applied to a padlock. l j' Inthe construction of a padlock having a lami nated body or case formed ofsuperposed plates or sections, it is desirable to provide lockmechshackle to hold it in locked position but alsgjto' i the means forpreventing the complete detach, ment of the shackle from the lock whenthe shackle is open, and in addition to the key-operated lock mechanismwhich bolt. v i

It is contemplated by the present invention to improve the 'variousfeatures above referred to,

with particular reference to the means for securing the shackle againstcomplete detachment serves to rotate l.the

from the lock and to the means for securing the I key barrel in thehousing of the key-operatedlock mechanism.

One object of the invention is to provide a padlockrhaving a laminatedbody made up of a plurality of superposed sectionsv or plates and havingnovel means for securing the against detachment from the lock.

A still further object of the invention is,v to provide a padlockhavinga key-operated locking member cooperating with the shackle and mech'anism for operating -this member, including a. lock housing and keybarrel, with improved meansfor retaining the key barrel within v,thehousing, and at thesametime providing a. stop tov limit the rotation ofthe key barrel. A still further object of the invention is vide a lockmechanism having a lock housingand a key barrel rotatablymounted.therein, with a combined securing and limiting member'which willfunction satisfactorily to retain the keybarrel in place within the lockhousing `and also serve as a means of limiting the rotation of the keybarrel. Y

Still another object of the invention is tofprovide a padlock having abody of laminatediform with a member extending transversely of the caseshackle and engaging at its intermediate portion with ashoulder'exte'nding transversely of the shackle to prevent completedetachment of the latter from the case, which member, in the formkshown, is resilient or a spring member to yieldupon rota-l,

tion of the shackle.

To these and other ends, the invention relates to the novel features andcombinations of parts to be hereinafter described and claimed.

In the accompanying drawing:

Fig. 1 is a front elevational view of a padlock embodying my invention;

Fig. 2 is a top plan view of the same; I v Fig. 3 is a bottom plan Viewof the lock; Fig. `4 is the central longitudinal section through thelock, some parts being shown in full lines;

Fig. 5 is a sectionalview on line 5--5 of Fig. 4; Fig. 6 is a sectionalview on line 6--6 of Fig. f1; Fig. 7 is a sectional view on line 1-1 ofFig. 4;

and ,v Fig. 8 is a sectional view on line 8-8 of Fi g.'4. To illustratea preferred embodiment of ,my invention, I have shown a padlockcomprising a case or lock body III of laminated form made of a pluralityof superposed sections which Willbe described in detail hereinafter.These sections, as will be explained, are of various conformations,particularly with respect to the openings therein which receive theworkingr parts of the lock. `It will be understood thatthe plates areall of the same exterior pattern, however, so that when superposed andiirmly secured together the lock body will have a smooth cuter surface.

In the present instancerthe bolt of the lock is designed to be operatedby a pin tumbler locking mechanism and the platesy are arranged to re-lceive a structure of this kind. Itv will be under-l.

stood, however, that the lock is not limited to a" locking mechanismv ofthis character. This,` mechanism comprises the usual key barrel II,

rotatably mounted within a housing I2f-having a pin tumbler extensionI3. It will be noted from Figs. 'Tand 8. for example, that the lkeybarrel `I I This reduced neck is at lupon two sides, asy shownat I6 andI1 in Fig. 7, and isradapted to be closely embraced by a disk I8 slottedto receive snugly the neck I5. It will be apparent from Fig.

8 that the disk I8 is of suicient size to overlie the .upper end of thehousing I2 around the key.

ber, as will be hereinafter described.

The upper end of the key barre1 is reduced in size, as shown at 20, andis of noncircular form 'to be received in an opening 2lv infanoscillating locking member 22, the ends 23 and v24 of which cooperatewith recesses 25 and 26 in the shackle 2'I to retain the shackle inlocked position, will be clear'to those skilled in the art.

One leg ,of the shackle 2'Il is longer than the other, this longer leg28 exter'i-ding downwardly to' a'position adjacent the bottomof thecas'e where l it is provided with an annular recess or groove 'of'theplates are provided with openings to re- 29 and with a lateral recess,30 at `one side, form.- -1 Below the recess 29, a

ing a flattened face. head 3|, against which bears a spring 32 to urgetheshackle-to open position. A' g Aswill be apparent when thelocki-ngmember 22 is rotated `or oscillated, so as to disengage its ends 23 and24 from the recesses 25 and26,"the` .spring 32 would tend toforce thelonger legerv the shackle from the opening in which it-rersts and thusdetach the shackle completely from-the lock. This, however, is preventedby means` of a retaining member 33, shown moreespecially5 in Figs. 6 and"I, which retainingmember extends transverselyacross thelock case,Ilying in an opening in the plates forming the case, and bears at itsintermediate portion l against the iiat' face-.3D of the shackle leg 28.The member'33 is surficiently resilient so that the shackle 'may ber'otated'when it is inopen p`osition, the member 33 yielding at itscentral portion to permit this action. Normally, however, such rotationvwill occur when the shackle is in its full openl position and the spring3,3 lies within 'the annular recess 29 and, at this time, the springengages the up-4 per surface of the head 3l to'retain the shackleconnectedtothe lock case.. y Y` The various sections which go to makeupthe lock case will now'bedescribed. The twojuppei sections, designatedby the letterI a, eeide'ntieai r' in form and are of the shape shown. inFig. 2. conf. taining a. circular opening'adjacent each en'dfo'rreception of the shackle.. The' next two lower plates are. designated bythe reference character l?. and ar'e'cf` theY form shown in Fig. 5.-,Irl'hes'e plates are provided' with central openingsof irl regularshape, theseopenings providing a chaine.- ber for the locking member 22,thechamber being s uiciently spacious tofpermit thismember `tooscillate. These plates are also provided kwith shoulders 35 againstwhich bears a spring 36 act-l ingat, its other end against a'shoulder 31on the lockingmember 22 to normally urge this memberv to lockedposition, as shown in Fig. 5. 4The "next lower plate, designated by thereference characr' ter c, is shown in. Fig. 6 and. .as will be apparent,

it is providedwith anopening of irregular shape to; receive thespring'33,.one le'g of the shackle,

and the. upperendloi` v the keyfbarrel. Thev vnext, lower .section'disiormed as4 shown in Eigj, and' is'provided with anopening' ofirregular shape;

as shown at 39, this opening being adapted Ato re-1 eeive the longeriegef the shackle, the Spring .33,- the disk I8',- and a portion'of thekey barrel' rern--Y gaged by the lug I9 to form a stopfor the rotal tionof the key barrell in one direction. The rotation of the key barrel inthe other direction is limited by a portion 4| of the plate d whichengages the opposite face of the lug I9.'

Below the plate or section d are a plurality of plates e of identicalform. Each of these plates'is provided with a relatively large openingof the proper lsize-,fand yshape' .tor` receive `thepintumbler lockhousing" I2 and extension I3,'andwith'a small ycircular opening toreceive the leg '28 of the shackle and the spring 32. i

The lowest section or plate .f 1s of the form shown in Fig. 3 and isprovided with a single cir- "cul-'ar opening -t'o'r'eceive the head I4of the key barrel."'1t'lwill'l bef-understood, however, that all yceive` rivets 42 by which the vsections are secured 'together to formarigid body of smooth exterior outlines. It will also be apparent thatthe spring 3 35 is, held in. position byhaving its ends lodged betweenportions of, t he openings in. the plates c` and` d', and particularlybetweentheedges of these. openings and the posts-,42, so thatf'the' ends0f vthe .spring will beheld ,fairly rigidly against movement, A .u Thedevceis shown inlocked positionin Figs. 45, and. 7 of the drawing .wherevit willbe seen the ends'23 and 24 ofthe bolt areengag'ed intherecesses.2 5 and. 2.6i. If fa. keyis inserted inthe lock and thekey'barrel operated in a counter; clockwise directionfas viewed in Figs.5. and-7,. the

beltfwili'be disengaged fremthe shackle' and will permit the `shackleto-be moved outwardl-yfby the from a positiona'gainstfthe member 40,asvshown in. Fig. "7.' toa positionagainst'the edge r4|, of opening yinthe plate d.' Wh'enthe shackle vhas been'moved outwardly bythe spring32, the longer ieg' 28. thereor win. retain, the/telt 22. in its un.,`

' the posi'tonshown in Eigl.

' in s'aid openings, said long leg having a shoulderAv from vreferenceto'Fig. 7l that the pintumblei .c X-f f tension I3 of thehousing, I2'isprovided with an upstanding 'member' -or, lug- 40 v( iesigned to 'been -7 locked position by.' engagement vvithtlieside surface of, the end.24'.of-tlie bolt. The. shackle may now be rotated with'respect to the'casing |0,if

desired, in order tofree it from the hasn crother element..withwhichjitfhasbe'en engaged.,

' Although tl 1e bolt ,2 2 will 4.be Iheld positio to which it'has'beenrotatedgthe keybarrel may be .returned to itsoriginal position so.as .to align' the tumblers (not s hownlto'permit removal. of thekeyby'reason of thev fact that theopening, 2|, as shown in 5,.,hasenlarged ends which will permit relativemovement between theb'olt.

and theupperreducedjpogition 2.0. of the key bar-' f elLj If" it iszdesfir'ed'.'toreturn the shackleftfolocked position,j ithe.vshort. end.thereof' maybe broughtoppositethe opening in which it is re.- Geived,andthe. shackleypressed' downwardly.

Whenit reaches the 'position shown in Fig. ll,-

the., 'boltl .'will bef. returned by' the "spring 36.,

While I .have shown, and descrilced'v-lza,y preferred embodiment of. myinvention, it. will be .underfA stood that itisnot. to b 'elmiteduto'.alluofzithe. details .showmbnt is capablejoi'mddiiication andvariatioli'withn the Spirit.ofy.the"illveiltionE withintnes .opeet'thegamqended:eidims..

L' what I claim" is;

,1. A, padlock 'comprising case and' having .a` long.. and fa 4v,shortleg .received adjacent. thelower end thereof and .aflat resilie'nt,member extending' transverselyacross one v aca'sehavingfs'hackleopenings therein.. a. shackle cooperating with the,A

urged against the side of said long leg to engage said shoulder andprevent detachment of the shackle from the case.

2. A padlock comprising a case, a shackle cooperating with the case andhaving a long and a short leg, said long leg having a shoulder adjacentthe lower end thereof, a flat resilient member extending transverselyacross one end of the case and urged against the side of` said long legto engage said shoulder and prevent detachment of the shackle from thecase, and said case comprising a series of superposed plates and rivetmembers holding said plates together, said member bearing at its endsagainst certain of said rivets.

3. A padlock comprising a case, generally oblong in shape and having ashackle opening adjacent each end thereof, and a shackle membercooperating with the case and having a long leg and a short leg receivedin said openings, said long leg having a flattened portion adjacent itslower end and a shoulder below said portion, and a iiat spring memberextending transversely across one end of the case and bearing at itsin,- termediate portion against said flattened portion of the shackleand engaging said shoulder to prevent detachment of the shackle from thecase.

4. A padlock comprisinga case, generally oblong in shape and having ashackle opening adjacent each end thereof, and a shackle membercooperating with the case and having a long leg and a short leg receivedin said openings, said long leg having a flattened portion adjacent itslower end and a shoulder below said portion, a

Y flat spring member extending transversely across one endof the caseand bearing at its interme- .diate portion against said flattenedportion of the shackle and engaging said shoulder to prevent de`tachment of the shackle fromthe case, said case comprising a pluralityof superposed plates, and

' said spring being disposed in openings in certain of said plates.

5. A padlock comprising a case formed of a plurality of superposedplates having openings therein to provide a chamber, a lock housingseated in said chamber, a key barrel rotatably mounted in the lockhousing and extending therefrom at one end, said key barrel having areduced portion on said end and an enlarged portion beyond said reducedportion, a retaining element non-rotatably embracing said reducedportion and engaging the housing to retain the key barrel therein, saidelement having a projecting lug,` and stop means to engage said lug tolimit rotation of the key barrel.

6. A padlock comprising a case formed of a plurality of superposedplates having openings therein to provide a chamber, a lock housing anda stop member on said housing to engage plurality of superposed plateshaving openings therein to provide a chamber, a lock housing seated insaid chamber, a key barrel rotatably mounted in the lock housing andVextending therefrom at one end, said key barrel havinga reduced portionon said end, aretaining element non-rotatably embracing said reducedpor` tion and engaging the housing to retainthe key barrel therein, saidelement having a projecting lug, and stop means engaging said lug onboth sides thereof to limit rotation of the key barrel in eitherdirection.

v8. A padlock comprising' a case formed of a plurality of superposedplates yhaving openings therein to provide a chamber, a lock housingseated in said chamber, va key barrel rotatably mounted in the lockhousing and extending therefrom at one end, said key barrel having areduced portion on said end,.a retaining element l non-rotatablyembracing said` reduced portion and engaging the housing to retain thekey barrel therein, said element having a projecting lug,

seated in said chamber, a key barrel rotatably' mounted in the lockhousing and extending therefrom at one end, said key barrel having areduced portion on said end, an element non-rotatably embracing saidreduced portion and having a projecting lug, a stop member on saidhousing to engage said lug and limit rotation ofv the key barrel, andmeans on one of said plates to

